Wire screen



No. 6|9,958. I Patented Feb. 2|, I899. E. HIPDLITO & A. MASTIN.

WIRE SCREEN.

Applichtion filed Feb. 9. 1898.; (No Model.)

STATES- PATENT OFFICE.

ESPIRIDIQli HIPOLITO AND ASA 'MASTIN, OF LOS ANGELES, CALIFORNIA.

WIRE SCREEN.

SPECIFICATION forming part of Letters Patent No. 619,958, dated February 21, 1899.

' Application filed February 9, 1898. Serial No. 669,690. (No model.)

To all whom it rndzifconcern:

Be it known that WQ ESPIRIDION I IIPOLITO and ASA MASTIN, citizens of the United States,

residing at Los Angeles, in the county of Los Angeles and State of California, have invent- 1 ednew and useful Improvements in Wire Screens, of which the following is a specification.

Our invention is an improvement upon the wire screen set forth in our application, Serial No. 655,838, filed in the United States Patent Office October 20, 1897, forfgwindow-screens, in whichapplication we have shown a main member having in one 1631061111631 the edge thereof, a groove the inner '[vall of which is lower than the outer wall andjthe bottom of which groove slopes from thef outer wall tothe inner wall to form an obtuse angle with the-outer wall and an acute angle with the inner wall, a sheet bent in suchgroove, and a strip in the groove to hold the sheet in place, the strip being fastened in placeifn the groove above the sheet by means of nails or brads driven through the strip. "1

The object of our present invention is to avoid the necessity of nails or brads; also, to produce a superior and more ornamental fastening and to so arrange the structure that the act of inserting the fastening strips will:

tighten the wire-gauze and perfectly secure it in the frame and tightly hold the frame to-.

gether. w

Our present invention comprises the combination of a main member rabbeted along one corner and there provided with a main groove 1 one of the walls of which is provided with a supplemental groove above the level of the top of the lower wall, the floor of the main groove sloping from such wall to the lower wall and forming an acute angle with said lower wall, a sheet bent into the main groove,

and a strip with two sharpbeveled edges, one of its edges in the main groove above the sheet and the other edge sprung into the supplemental groove in the wallthat is to say, the width between the two edges of the strips is slightly greater than the space between the acute angle of the groove and the upper margin of the supplemental groove, so that when being pressed into place above the sheet the strip will have to spring or give in its width to pass the corner of the upper wall of the supplemental groove.

The accompanying drawings illustrate our invention.

Figure 1 shows a window-screen in accordance with our present invention. Fig. 2 is a fragmental detail of one corner of a screen embodying our present invention. Fig. 3 is a cross-section of a wooden strip with the fastening-strip as cut from the same and in place to show its position before being cut, and dotv ted lines indicate the grooves to be cut in the strip. Fig. 4 is a cross-section of a stile with screen-wire sheet fastened in place, illustrating our invention. Fig. 5 is a' view of one corner'of a frame ready to receive the sheet, except that the inner wall 3 is to be cut away from across the groove a.

Aindicates the main member,provided with a main groove a, preferably having a sloping bottom 1 and having the wall 2 along the upper side of said sloping bottom higher than the other wall 3 and provided above the level of the top of the lower wall with a groove 4.

B indicates a sheet of wire-gauze bent in the main groove and extending over the lower wall 3 and terminating in the main groove.

0 indicates a fastening-strip having two sharp bevel edges, the space between which is slightly greater than the space between the acute corner into which the sheet is bent and the upper margin of the supplemental groove, and with one edge in the main groove above the sheet at the angle between the bottom and the lower wall 3 of the groove and the other edge of said strip in the supplemental groove 4 of the wall 2. or molding O has two sharp or acute edges 0 0, being preferably rounded on the outer side and flat on the inner side.

We will now describe the method by which we prefer to manufacture the screen. A strip of board of suitable size for the purpose, depending upon the character of the screen to be made, is passed through a beading-machine having in addition to the heading head or cutters a circular saw by which the bead is severed after the beading-head has done its work. It will be understood that the beading-head forms the rounded side and the saw the fiat side of the molding or strip 0 and The fastening strip.

that these two sides join in two sharp edges. The outer face may be rounded or of any other ornamental form desired, while the inner side is preferably fiat and of such width as to fit loosely between the supplemental groove 4 and the acute angle at the lower side of the main groove a, so that when the sheet B is in place and the strip in place thereon, as shown, it will tightly fit in place with its edges respectively in the supple mental groove and the angle of the bent sheet at the lower side of the main groove. After the bead has been severed the strip to form the main member A is run through a machine to cut the groove a, preferably having the sloping bottom, as shown. Then the member A is run through a machine to cut the groove 4 in the wall 2. Four members, such asA A A" A', are thus made and then joined together. The edges of the wire sheet are bent into the main four grooves in the frame and the strips orbeads O O O 0 are inserted into place to complete the frame. In placing the strip or bead one edge is first inserted resting upon the bent sheet in the acute angle formed between the lower wall and the bottom of the groove. Then the other edge of the strip is pressed into placeinto the supplemental groove 4 in the other wall 2 of the main groove a. The act of springing the strip into place tightens the gauze sheet perfectly, so that there is no liability of loose netting. Before placing the sheet in the frame the walls on the inner sides of the grooves are trimmed at the point 6 at the junction of the grooves, as indicated by dotted line in Fig. 5, so that the main groove will be continuous around the frame. The wire-gauze sheet being bent at an acute angle in the grooves and at right angles over the lower walls is firmly held by the strips and any strain to draw the sheet from the grooves is borne both by the upper and lower edges of the strip, but especially by the clamping action of the lower edge against the lower wall,which results from the strain owing to the oblique arrangement of the strip across the main groove and the strong bearing and support afiorded to the upper edge of the strip by the grooved wall 2. The strip can be removed at will by inserting a blade into the groove behind the upper edge of the strip, which can then be pried out of its groove. By placing the supplemental groove above the top of the lower wall and using a fastening-strip with two sharp bevel edges, as shown, the fastening is accomplished with great ease and a neat finish is given to the work, and the strain of the gauze tends to force the upper edge of the strip into the shallow supplemental groove, so as to prevent its removal unless pried out by a blade inserted behind such edge.

Now, having described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination of the main member provided with a main groove, the walls of which are of different heights and the higher one of which walls is provided with a groove above the level of the top of the lower wall; a sheet bent over the lower wall and terminating in the main groove; and a strip with a flat and a rounded side and two sharp edges and with one of its edges in the acute angle of the main groove above the sheet, and the other edge in the groove in the wall.

2. The combination of the main member provided with a main groove, one of the walls of which is higher than the other and is provided with a groove above the level of the top of the lower wall, the floor of the main groove being at an acute angle with the lower wall of the groove; a sheet bent into said main groove; and a strip with sharp edges, one inserted into the main groove above the sheet and pressing the same into the acute angle, and the other inserted into the groove in the higher wall.

3. A screen composed of the main members joined to form a frame, and each rabbeted at its inner corner at one side of the frame and there provided with a main groove having the wall at the outer side higher than the inner wall, and provided with a groove above the level of the top of the lower wall; the floor of the main grooves being at an acute angle with the inner wall of said grooves respectively; a sheet bent in the main grooves; and fastening-strips each having two sharp beveled edges with one edge in its respective main groove above the sheet and the other edge in the groove in the wall substantially as set forth.

ESPIRIDION IIIPOLITO. ASA MAS'IIN. Witnesses:

JAMES R. TOWNSEND, ALFRED I. TOWNSEND. 

